I'm assigning a numeric value to variable count=2, well its being assigned by code above the if condition.
I want to test for 2 conditions , when $count = 0 or $count <=2 and do something when the condition matches. here is my code, but i run into the infamous :[ Unary operator expected.
Last edited by Irishboy24; 10-08-2012 at 07:54 PM..
Hi
I am doing a script like
if
then
echo "table name dosent exist"
exit
fi
the problem is if $table_name is null then i am getting the error
Please help me
Thanks in advance (2 Replies)
hi
i am trying to compare a value with value 50. but i am getting
"
I am using
if
then
echo "------------"
fi
please help
thanks in advance
Satya (2 Replies)
Im trying to fix my /etc/weekly that rotates various logs however it does them no matter what filesize they are and i want them to only do it if there file size exceeds 2M or something. So I'm playing with a script to get the filesize using a ls -l command which works and puts the value into a... (3 Replies)
Im trying to check if a series of directory exists and if not create them, and am having issues. All the instances of test return with the error "test:
#!/bin/bash
location_Parent=~/Documents/sight_of_sound
location_IMG=~/Documents/Sight_of_sound/IMG
location_AUD=~/Documents/Sight_of_sound/AUD... (4 Replies)
find . -name "*.*"|xargs grep WT:DBF_WL>> $F
Wfexist=`cat $F|grep $i`
echo $Wfexist
if ;
then
echo $Wfexist
echo "Workflow Exist"
else
touch $O
chmod 777 $O
echo $Wfexist
echo $WfExist >> $O
fi
I am getting the error that -ne: unary operator expected in the line with red... (2 Replies)
Why am I getting this error.... #!/bin/sh
# iOS-Ad-Remover
# Marshall Ford @ marshallbford@gmail.com
# This project is hosted @ http://ios-ad-
# remover.sourceforge.net
# Under the GNU GPL open source license
clear
echo
if ; then echo "You need to be root to run this script."; exit 0; #... (24 Replies)
i=0
while
Shell script reports an error "unary operator expected" pointing the above line.
$i by default is 0 and holds integer value and $buf is also holding integer value.
Please can some one let me know what is missing.
Thanks. (1 Reply)
Hiya all,
Why do I get a :unary operator expected when I try to put a condition statement in my shell script (sh) like so and how to fix?
if ; then
echo "say hello"
else
echo "don't say hello"
fi
? It seems if the script receives an argument it works but if I don't put an... (4 Replies)
Hi
I have problem with my script.
I dont now why but i don't change anything and script stop working.
this is my code:
#!/bin/sh
for i in `ps -A | grep pocron.sh | grep -v grep | awk '{print $2}'`
do
COUNT=$((COUNT+1))
done
ostatnie_wykonanie=`cat porader.log`... (1 Reply)
In all my Googling, this usually happens when someone is comparing a variable, and that variable is unset. That doesn't appear to be the case for me...
#!/bin/bash -x
while read line
do
f=$(echo $line | tr -s ' ' | cut -d' ' -f 3)
echo $f
if
then
echo "This... (2 Replies)
Discussion started by: jnojr
2 Replies
LEARN ABOUT HPUX
pthread_cond_destroy
pthread_cond_init(3T)pthread_cond_init(3T)NAME
pthread_cond_init(), pthread_cond_destroy() - initialize or destroy a condition variable
SYNOPSIS PARAMETERS
cond Pointer to the condition variable to be initialized or destroyed.
attr Pointer to the attributes object that defines the characteristics of the condition variable to be initialized. If the
pointer is NULL, default attributes are used.
DESCRIPTION
The function initializes the condition variable cond with the attributes attr. If attr is NULL, the default condition variable attributes
are used to initialize the attributes object. See pthread_condattr_init(3T) for a list of the default condition variable attributes.
After successful initialization, the condition variable may be used in condition variable operations. A condition variable should be ini-
tialized only once or the resulting behavior is undefined. The function provides a way to ensure that a condition variable is only ini-
tialized once.
The macro can be used to initialize condition variables that are statically allocated. These condition variables will be initialized with
default attributes. The function does not need to be called for statically initialized condition variables.
If the process-shared attribute in the condition variable attributes object referenced by attr is defined as the condition variable must be
allocated such that the processes sharing the condition variable have access to it. This may be done through the memory-mapping functions
(see mmap(2)) or the shared memory functions (see shmget(2)).
destroys the condition variable cond. This function may set cond to an invalid value. The destroyed condition variable can be reinitial-
ized using the function If the condition variable is used after destruction in any condition variable call, the resulting behavior is unde-
fined.
A condition variable should be destroyed only when there are no threads currently blocked on it. Destroying a condition variable that is
currently in use results in undefined behavior.
RETURN VALUE
Upon successful completion, and return zero. Otherwise, an error number is returned to indicate the error (the variable is not set).
ERRORS
If any of the following occur, the function returns the corresponding error number:
The system does not have the available resources (other than memory)
to initialize the condition variable.
The specified condition variable is an already initialized condition
variable. However, getting for reinitializing the condition variable cannot be expected all the time since the
behavior of reinitializing the condition variable is undefined.
The cond parameter points to an illegal address.
The value specified by
cond or attr is invalid.
There is insufficient memory available in which to initialize
the condition variable.
If any of the following occur, the function returns the corresponding error number:
An attempt to destroy
cond while it is in use by another thread.
cond is not a valid condition variable.
WARNINGS
The space for condition variable must be allocated before calling Undefined behavior will result if the process-shared attribute of attr is
and the space allocated for the condition variable is not accessible to cooperating threads.
AUTHOR
and were derived from the IEEE POSIX P1003.1c standard.
SEE ALSO pthread_cond_signal(3T), pthread_cond_wait(3T).
STANDARDS CONFORMANCE
Pthread Library pthread_cond_init(3T)